Telephone lock and call-register.



E. L. BUXBAUM.

TELEPHONE LOCK AND GALL REGISTER.

APPLIoATIoN HLED MAY 17,- 1909.

989361, PatentedApr.18,1911.

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M R o E. L. BUXBAUM. TELEPHONE LOCK AND GALL REGISTER.

.PPLIOATION FILED MAY 17, 1909.

Patented Apr. 1 8.z 1911'.

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i -it normally and call EMANUEL L. BUXBUM, 0F CHICAGO, ILLINOIS.

TELEPHONE LOCK ANI) CALL-REGISTER.

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Speeicaon of Letters Patent.' Patented A131; ig, jkg, pplicatvion led May 17, 1 909. Serial No. 496,589.

To all whom 'it my concern.: Be it known that I, Ein-incur. L. Bux- BAUM, a citizen of the United States, residing at Chicago, county of Cook, State of Illinois, have invented a certain new and useful Improvement in Telephone Locks and Call-Registers, and declare the following to be a full, clear, and exact description such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention has for its object .to provide a simple and novel device which may be attached to an ordinary telephone for locking accurately registering the s. The various features of novelty whereby my invention is characterized will hereinafter be pointed out with particularity in the claims; but, for a full understanding of my invention and of its object and advantages, reference may be had to therfollowing detailed description taken in connection with the `accompanying drawings, wherein:

Figure l shows in side elevation a' fragment of Van ordinary desk telephoneV and in cross section a device embodying the present invention secured in operative position on the telephone; Fig. 2 is a side elevation of a device removed from the telephone; Fig. 3 is a front elevation of the device; Fig.

4f -is a section taken on line 4 4 of Fig. 2;

Fig. 5 is a section taken on lines 5-5 of Figs. 4 and 6; Fig. 6 is a section taken on line 6-.6 of Fig. 4; and Fig. 7 is a section taken on line 7-7 of Fig. 4. i Y Referring to the drawings, A represents the standard of a desk telephone and A1 the usual hook for supporting the receiver.`

B is a casing having a. socket b bounded on one side by able Wallv C, this socket being of a. 'size and shape to receive and fit upon the standard ofthe telephone.

D' is aslot in the top directly beneath the telephone hook. Se-

' cured to thehook is a lug or dog E which means of a movable and adjust-V Wall of the casing trated the hook is pivoted so that the lower' end of the dog swings in an are of a circle when the hook is raised. Consequently, by providing a movable abutment for engaging with the side of the lug, the lug and therefore the hook may belocked against movement and be prevented from assuming its operative position upon the removal et the receiver.

In the arrangement shown, vided an L-shaped plate F slidahly mounted in a recess b1 in the casing, together with a spring F f for holding the. plate in a position wherein its short arm f lies between the lug VE and the side of the casing. plate is retracted so that the arm f clears the I have pro- A When the lug, the hook is free to rise and when it is up the lug swings in front of the arm f and holds the plate retracted. As soon, however, as the hook is depressed, the lug clears the arm f and the plate swings for ward into its locking position, so that the hook cannot again be raised until the plate is again retracted. For the purpose of retracting the locking pla-te, I have provided a number of sliding plungers G, G1, and G2, these plungers being mounted in a depending wall D1 carried by the cover D2. The front ends 'of these plungers project into proximity to the front wall of the ca and register with openings b2, b3. and b4, in said Wall. The rea-r ends of the plunger-s extend into the frontend of the long arm f1 of the locking plate. It will be seen that by inserting a suitable instrument through any one of the openings in the front Wall of the casing, one of the plungers will be forced back- Ward into engagement with the locking plate and will 'carry the locking plate into Van inoperative position. If the receiver be then taken from the hook the hook will rise but, if the instrument be Withdrawn before the receiver is taken o, the locking plate will resume its normal position.

Associated with each of the plungers is a register of any suitable form so that whenever the telephone is unlocked a registration will be made. 'Three registers .H, H1,

Vand H2, of any usual type are shown, the

arm .71. and the register H being operatively connected with the plunger G, the arm 72.1 and the register H1 being operatively connected with the plunger G1 and the arm k2 and the register H2 being connected with the plunger G2. This connection betweenV the registers and the plungcrs lnay be effected in any suitable manner as, for example, by providing each plunger with a pair of separated pins g which play within slots (l Lin the wall D1, the pins of each pair being spaced far enough apart to receive between them one of the actuating arms for the registers. 'The registers may conveniently be supported b y means of clips I, I1, and I2, projecting forwardly from a transverse wall I)3 depending downwardly from the cover D2. The registers may be read through openings b5 in the' front wall of the casi-ng.

I have shown three lock-releasing plungers and three registers so that one will record the number of in-calls, one the number of out-calls, and the other the number of busy signals. In. this way a positive record will be made of each and every call and the'user can tell vegtactlv the number of outcalls which he has made during a month or other period. When the out-call register is actuated and a busy signal is received, the user replaces the receiver and then actuates the busy signal plunger. If the line is now clear the previous record made on the out-call will indica-te the proper number of out-calls which havebeen made. If desired, after the receipt of a busy signal, the busy signal plunger may be actuated withoutlifting the receiver and in this case the total number of' out-calls will always be equal to the difference between the totals shown by the out-call register and the busy signal register. When there is an in-call the user,

, before hecan use the telephone, must unlock the hook and this can be done by operating the :in-call plunger.v It will thus be seen that the hook is always locked and one of the registers must be operated before the telephone can be used.

In order that the ownerof the telephone may preventnothers from using it, I provide means for closing the openings b2 and b4 when desired. This may conveniently be accomplished by boring a vertical hole b in the front wall of the casing across the openings ?)2 to b4 and placing within this opening a plunger K slotted throughout a portion of its length as at 1. `When the plunger K occupies the position shown in Fig. 7, the lopenings Ab2 to b4 are closed, but when the `plunger is turned through an angle of J0 degrees from that position the slot registers with these openings and an instrument can be inserted through any one of them. The lower end of the plunger K is slotted as at 7st so that the plunger may be turned by inserting a key through a small opening 67 in the lower wall of t-he casing. It will be seen that the plunger may be dropped in place and be locked by simply placing the cover upon the'casing. no other fastening means being required. i

It is desirable that the casing be held in position upon the telephone in such a way that it cannot be disturbed and, where the movable wall C is clamped against the standard by means of screws L, I prefer to employ a plate M for covering these screws. This plate is preferably made L-shaped so that one arm m lies within a groove 58 in the side of the casing, .the other arm m1 lying within a dove-tailed groove L in the front wall of the'casing. The member m1 has a notched lip m2 which projects into the wall BR of the casing and in this wall is pivoted a dog N which normally lies within the notch in t-he lip m2. The dog N is provided with a square opening n which regis ters with an opening 'B4 in .the wall of the casing so that uponV the insertion of a key the dog may be` lifted and the plate removed. The member m? of the plate is preferably made wide enough to cover the openings through which the registers are visable'and therefore when the owner desires, he may not only lock the telephone against use, but may conceal the registers 9o so thatl only a plain case is visible.

IVhile I have. illustrated and described in detail onlva single embodiment of my invention having three lock-releasing plungers and three registers, I do not desire to be limited to the particular arrangement shown or to one in which there are three lock-releasing plungers or three registers or wherein there is a register associated with of my invention falling within the terms of the definitions of my invention constituting the appended claims.

' What I claim is:

1. In combination, a casing constructed and arranged to be secured upon the stem of a desk telephone directly beneath the hook7 a locking bar for the hook movably mounted in the casing, a register in the casing, a device for controlling the locking bar, 11o and means associated with said device for actuating said register.

2. In combination, a casing, means for fastening the casing to a telephone directly beneath the hook, a locking bar for the 115 hook movably mounted in the casing, a register in the casing, a device for actuating the locking bar, and means associated with said device for actuating said register.

3. In combination, a casing provided with a socket to receive the stem of a desk telephone, a locking bar for the telephone hook mounted in the casing, a register in the casing, a device for controlling the locking bar, and means associated with said device for actuating said register.

4. In combination7 a casing constructed and arranged to be secured to a desk telephone beneath the hook, sai/d casing having a slot immediately below said hook, a lug projecting from said hook through said slot, a locking member in said casing for engag- -ing said lug, a register in the casing, a device for controlling the lock, and means associated with Isaid device for actuating the 'receiver'.

I 5. In combinatlon, a casing constructedl .adapted to be secured to said hook and project into said slot, a lockingv member in said casing for engaging said lug to hold the hook in the inoperative positlon, a register in said casing, a device for releasing said lock, and a connection lbetween said device and said register.

6. In combination, a casing constructed and arranged to be secured to a desk telephone beneath the hook, said casing having a slot immediately below said hook, a lugadapted to be secured to said hook and project into said slot, a spring-pressed locking member in vsaid casing for engaging with said lug to hold the hook in its inoperative position, a register in said casing, a slide for moving' said spring-pressed member into unlocking position, and a connection between said slide and said register.

7. In combination, a casing constructed'so and arranged to be secured to a desk ltelephone beneath the hook, said casing having a slot immediately below said hook, a lug adapted to be secured to said 4hook and project-into said slot, a spring-pressed locking member in said casing for engaging with Asaid lug to hold the hook in its inoperative position, a register in said casing, a slide for moving said spring-pressed member into unlockin position, andl a connection between said slide and said register, said casing havtion of an mstrument with .which to actuate 111g an opening therethrough for the insersaid slide, and means for closing said opening.

8. In combination, socket for receiving the standard of a desk telephone, an adjustable member forming -one Wall of said socket, adjusting means for said member, a detachable plate overlying said adjustin means so as to conceal it, and a lock for ho ding said plate in position.

.In testimony whereof, I sign this specification in the presence of two witnesses.

EMANUEL L. BAUM. Witnesses:

WM. F. FREUDENREICH H. S. GAITHER. 

